Double-light path high-efficiency fluorescence gathering system

A collection system and dual optical path technology, applied in the field of medical instruments, can solve the problems of complex optical path structure, many optical elements, and low collection efficiency, and achieve the effects of improving fluorescence collection efficiency, reducing costs, and facilitating adjustment

Inactive Publication Date: 2008-12-03
北京中卫医信医疗设备有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a dual optical path high-efficiency fluorescence collection system to overcome the shortcomings of existing products that have complex optical path structures, many optical elements, low collection efficiency, and high cost

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Embodiment Construction

[0013] Such as figure 1 As shown, the dual optical path high-efficiency fluorescence collection system described in the embodiment of the present invention mainly includes: a slit plate 1, an imaging (IP) plate 2, two optical fiber rows 3, a light shielding plate 4, a photomultiplier tube (PMT) 5, a filter Optical sheet 6, bracket 7, logarithmic amplifier 8, both ends of slit plate 1 are fixed on the support platform (not shown in the figure), IP plate 2 is transmitted on slit plate 1; 9 is fastened on the slit plate 1; the rear ends of the two optical fiber rows are integrated into a bundle and fastened by a cylindrical metal, and put into the metal dome of the photomultiplier tube 5, the rear end faces of the two optical fiber rows are close to the light shielding plate 4, and scanned and read The shading plate 4 is opened when the IP is extinguished, and the shading plate 4 is closed to protect the PMT from being irradiated by strong light; behind the shading plate 4 is a f...

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Abstract

The invention relates to a double light path high-efficiency fluorescence collecting system which mainly comprises a slit plate, an IP plate, two optical fiber rows, a light screen, a photomultiplier tube (PMT), a light filter, a support and a logarithmic amplifier. The two ends of the slit plate are fixed on a support platform, and the IP plate is transmitted on the slit plate. The two optical fiber rows are fixed on the slit plate by the fixing support. The back ends of the two optical fiber rows are integrated into one bundle which is fixed by a metal column and is packed into a metal round cover of the photomultiplier tube, and the back end faces of the two optical fiber rows are close to the light screen. The light filter is arranged behind the light screen, the PMT is arranged behind the light filter, the output of the PMT is connected with the logarithmic amplifier, and the PMT metal round cover is fixed on a machine frame through the support. The double light path high-efficiency fluorescence collecting system has the advantages of simplified light path layout, convenient adjustment, reduction in cost and improvement in fluorescence collecting efficiency; the fluorescence collecting efficiency of the invention is more than 50 percent higher than that of the prior structure; the quantum detection efficiency of a CR reading system is improved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a double-light path high-efficiency fluorescence collection system. Background technique [0002] Since 1995, my country's medical and health system has imported more than 4,000 computer radiography (CR) systems. It is mainly distributed in tertiary hospitals in large and medium-sized cities. The price of a CR system is very high (about RMB 1 million). my country currently has as many as 180,000 hospitals above the township level (basically all have X-ray machines). However, the geographical distribution is wide, and the level of medical treatment and equipment varies greatly. If a CR system is equipped to realize the digitization of X-ray projections and remote diagnosis, this will greatly improve the medical level of our people. [0003] Currently imported computer radiography (CR) system reading device, its laser excitation fluorescence collection system is a single optic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03G02B6/04
Inventor 侯方源王楠黄明启
Owner 北京中卫医信医疗设备有限公司
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